diff --git a/kernel/model/cloud_service.go b/kernel/model/cloud_service.go
index c44ab35fa..df7b08894 100644
--- a/kernel/model/cloud_service.go
+++ b/kernel/model/cloud_service.go
@@ -297,7 +297,7 @@ func refreshAnnouncement() {
 		}
 	}
 
-	for _, announcement := range GetAnnouncements() {
+	for _, announcement := range getAnnouncements() {
 		var exist bool
 		for _, existingAnnouncement := range existingAnnouncements {
 			if announcement.Id == existingAnnouncement.Id {
diff --git a/kernel/model/updater.go b/kernel/model/updater.go
index 239104010..747972b63 100644
--- a/kernel/model/updater.go
+++ b/kernel/model/updater.go
@@ -233,7 +233,7 @@ type Announcement struct {
 	Region int    `json:"region"`
 }
 
-func GetAnnouncements() (ret []*Announcement) {
+func getAnnouncements() (ret []*Announcement) {
 	result, err := util.GetRhyResult(false)
 	if err != nil {
 		logging.LogErrorf("get announcement failed: %s", err)